Customer Review

Reviewed in the United States on August 29, 2013
What we now call South America was for millions of years an isolated continent, much like Australia today where animal populations, largely Marsupial, without competing influences from any adjoining land masses evolved in unique and amazing ways and attained great sizes in some cases. This book explores the fossil record left behind by these animals which went into rapid decline once South America collided with the North American land mass and the Central American land bridge formed affording Mammalian species that evolved in other places to invade and in most cases cause the extinction of the Marsupial species.
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